CN214154870U - Low-pressure soft waterproof moisture permeable electrothermal film for clothing - Google Patents
Low-pressure soft waterproof moisture permeable electrothermal film for clothing Download PDFInfo
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- CN214154870U CN214154870U CN202022943635.9U CN202022943635U CN214154870U CN 214154870 U CN214154870 U CN 214154870U CN 202022943635 U CN202022943635 U CN 202022943635U CN 214154870 U CN214154870 U CN 214154870U
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Abstract
The utility model relates to a low-pressure soft waterproof moisture permeable electrothermal film for clothes, which comprises a first fabric layer, a second fabric layer, a first high molecular functional film layer and a second high molecular functional film layer; the first polymer functional film layer is pasted on the reverse side of the first fabric layer, the second polymer functional film layer is pasted on the reverse side of the second fabric layer, and the outer surface of the first polymer functional film layer is printed with a conductive carbon ink layer; a conductive carrier fluid layer is pasted between the conductive carbon ink layer and the second polymer functional film layer, and the conductive carrier fluid is printed along the outer surface edge line of the conductive carbon ink layer; the outer surface edge line of the second high polymer functional film layer is coated with a silica gel layer, and the second high polymer functional film layer is attached to the conductive carbon ink layer through the silica gel layer; the utility model provides an electric heat membrane that printing has fretwork special-shaped pattern has realized penetrating wet function and safe anticreep under the condition of taking into account waterproof and resistant washing requirement.
Description
Technical Field
The utility model relates to an electric heat membrane technical field especially relates to a dress is with soft waterproof moisture permeable electric heat membrane of low pressure.
Background
The electrothermal film for clothes in the current market adopts a method of packaging waterproof films on the front and back sides of the electrothermal film to meet the requirements of water resistance and electricity leakage resistance. However, the packaged finished electrothermal film has the defects of poor air permeability and moisture impermeability. The human body constantly gives off latent sweat, and more sweat when walking the motion, if can not in time give off, just lead to the sense of oppression easily, long-time damp and hot environment still easily breeds the bacterium, causes skin allergy. Therefore, the electrothermal film for clothes not only needs to satisfy good electrothermal performance, but also has the characteristics of moisture permeability, water resistance, flexibility and low-voltage safety. The low-pressure flexible waterproof moisture permeable electrothermal film suitable for the field of clothing becomes a product to be developed urgently.
In the prior art, in order to obtain the moisture permeable effect, some warm-keeping moisture permeable electrothermal fabrics select hollow polyester fibers, bamboo charcoal yarns and metal wires to be woven into plain weave with a compact weave structure to form the electrothermal fabrics. Static air contained in the hollow polyester fiber is adopted, so that the effects of heat preservation and moisture permeation are achieved. The electric heating fabric prepared by the weaving method has the defects of poor electric heating uniformity, low electric heating temperature and poor use durability.
When the electrothermal film is subjected to waterproof packaging in the prior art, the front and back sides of the electrothermal film are all packaged completely by the bottom-filled waterproof film, and although the waterproof and anti-creeping effects are realized, the electrothermal film is completely impermeable to moisture and air and has serious suffocation feeling.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a soft waterproof moisture permeable electric heat membrane of low pressure is provided for dress, can effectively solve the poor and moisture impermeable problem of electric heat membrane gas permeability.
The utility model provides a technical scheme that its technical problem adopted is: the low-pressure soft waterproof moisture-permeable electrothermal film for the clothes comprises a first fabric layer, a second fabric layer, a first polymer functional film layer and a second polymer functional film layer; the first polymer functional film layer is pasted on the reverse side of the first fabric layer, the second polymer functional film layer is pasted on the reverse side of the second fabric layer, and the outer surface of the first polymer functional film layer is printed with a conductive carbon ink layer; a conductive carrier fluid layer is pasted between the conductive carbon ink layer and the second polymer functional film layer, and the conductive carrier fluid is printed along the edge line of the electric heating circuit on the outer surface of the conductive carbon ink layer; the outer surface edge line of second polymer function rete has the silica gel layer, second polymer function rete passes through the silica gel layer with the laminating of conductive carbon printing ink layer.
The first fabric layer is a woven fabric layer.
The second fabric layer is a knitted fabric layer or a non-woven fabric layer.
The first polymer functional film layer and the second polymer functional film layer are TPU film layers or PTFE film layers.
The conductive carbon ink layer is made of composite graphene/carbon nanotubes.
The conductive carbon ink layer is provided with a hollowed-out special-shaped planar electric heating circuit pattern, and a hollowed-out part in the hollowed-out special-shaped planar electric heating circuit pattern is a sweat guide channel.
The hollow-out special-shaped surface-shaped electric heating circuit pattern of the conductive carbon ink layer is consistent with the shapes of the first polymer functional film layer and the second polymer functional film layer.
The first fabric layer, the second fabric layer, the first polymer functional film layer, the second polymer functional film layer, the conductive carbon ink layer, the silica gel layer and the conductive carrier fluid layer are formed by hot pressing through a surface-surface laminating process.
Advantageous effects
Since the technical scheme is used, compared with the prior art, the utility model, have following advantage and positive effect: the utility model discloses adopt screen printing method to print fretwork dysmorphism face form electric heating circuit pattern with conductive carbon printing ink, then carry out waterproof encapsulation to electric heating circuit pattern part, and encapsulation membrane pattern and face form electric heating circuit pattern are identical completely, have formed the fretwork position from this, namely lead the sweat passageway, so moisture permeability is good, has avoided the sense of oppressing when wearing; the utility model adopts the silica gel glue pressing method to package the electric heating film, so as to prevent water from permeating into the electric heating film from the laminating edge when washing or meeting water, thereby improving the washing resistance and durability of the electric heating film and ensuring the safety requirements of water resistance and electricity leakage resistance of the electric heating film; the utility model discloses an electric heat membrane has the resistivity low, is applicable to low pressure 5V power supply condition, possesses the face of generating heat even, electric heat conversion efficiency is high, launch advantages such as healthy physiotherapy light wave of far infrared, safety ring protects.
Drawings
Fig. 1 is a schematic sectional view of an electrothermal film according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a hollow-out irregular-shaped planar electric heating circuit pattern according to an embodiment of the present invention;
fig. 3 is a schematic diagram of another hollow-out irregular-shaped planar electric heating circuit pattern according to an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
The utility model relates to a low-pressure soft waterproof moisture permeable electrothermal film for clothes, as shown in figure 1, comprising a first structural layer 1, a second structural layer 2, a third structural layer 3, a fourth structural layer 4, a fifth structural layer 5, a sixth structural layer 6 and a seventh structural layer 7; the second structure layer 2 is pasted on the reverse side of the first structure layer 1, the third structure layer 3 is printed on the outer surface of the second structure layer 2, a fourth structure layer 4 is pasted between the third structure layer 3 and the sixth structure layer 6, the fourth structure layer 4 is 3mm away from the edge line of the third structure layer 3 and is printed or pasted along the edge line of the electric heating circuit on the outer surface of the third structure layer 3, the fifth structure layer 5 is coated on the edge line of the outer surface of the sixth structure layer 6, through hot pressing, the fifth structure layer 5 can firmly paste the second structure layer 2, the third structure layer 3 and the sixth structure layer 6 together, and the sixth structure layer 6 is pasted on the reverse side of the seventh structure layer 7; the first structural layer 1, the second structural layer 2, the third structural layer 3, the fourth structural layer 4, the fifth structural layer 5, the sixth structural layer 6 and the seventh structural layer 7 are formed by hot pressing through a surface-to-surface lamination process.
The first structural layer 1 is a first fabric layer, and usually, a woven fabric with good hygroscopicity and a compact tissue structure is selected as the first fabric layer; the seventh structural layer 7 is a second fabric layer, and usually, a knitted fabric or a non-woven fabric with a loose and light structure is selected as the second fabric layer; the second structural layer 2 is a first high molecular function film layer, and a TPU film or a PTFE film layer is usually selected as the first high molecular function film layer; the sixth structural layer 6 is a second high molecular functional film layer, and a TPU film or a PTFE film layer is usually selected as the first high molecular functional film layer; the third structural layer 3 is a conductive carbon ink layer, which is made of composite graphene/carbon nanotubes and printed on the outer surface of the second structural layer 2; the fourth structural layer 4 is a conductive fluid carrying layer, and the fourth structural layer 4 is 3mm away from the edge line of the third structural layer 3 and is printed or pasted along the edge line of the electric heating circuit on the outer surface of the third structural layer 3; the fifth structural layer 5 is a silica gel layer and is used for coating the edge line of the outer surface of the second polymer functional film layer, and the second polymer functional film layer is attached to the conductive carbon ink layer through the silica gel layer.
The preparation method of the low-pressure soft waterproof moisture-permeable electrothermal film for clothes in the embodiment comprises the following steps:
step (1): the woven fabric with a compact tissue structure and good moisture absorption is selected as a base material of the electrothermal film, namely the first structural layer 1.
Step (2): and (2) attaching a waterproof and breathable first high-molecular functional film (a TPU film or a PTFE film) to the surface of the base material to form a second structural layer 2, wherein the shape of the first high-molecular functional film is consistent with that of a printed hollowed-out irregular-shaped planar electric heating circuit pattern.
And (3): and printing a hollowed-out special-shaped planar electric heating circuit pattern on the outer surface of the second structural layer 2 by adopting composite material graphene/carbon nanotube conductive carbon ink through a screen printing method, and drying in a preset drying mode to form a third structural layer 3.
And (4): and a conductive fluid carrying layer (a fourth structural layer 4) is printed or pasted along the edge line of the electric heating circuit on the outer surface of the third structural layer 3 and 3mm away from the edge line of the third structural layer 3.
Further, the shape of the first polymer functional film in the step (2) is consistent with the shape of the hollowed-out irregular-shaped planar electric heating circuit pattern in the step (3); a hollow part is reserved in the hollow special-shaped planar electric heating circuit pattern in the step (3), and the hollow part is a sweat guide channel; the hollowed-out irregular-shaped planar electric heating circuit pattern in the step (3) can be an arched, E-shaped, semicircular or S-shaped pattern which is not full of bottom, and the specific electric heating circuit pattern is shown in fig. 2 and 3; the designed hollowed-out irregular-shaped planar electric heating circuit pattern can be printed on the first high molecular functional film layer in a single or repeated mode.
Further, the composite material graphene/carbon nanotube conductive carbon ink in the step (3) is aqueous environment-friendly thermoplastic conductive ink, and is prepared by dispersing conductive carbon materials such as graphene and carbon nanotubes in an aqueous thermoplastic organic resin solution, and the finally prepared electrothermal film has low resistivity, is suitable for a low-voltage 5V power supply condition, and has the advantages of uniform heating surface, high electrothermal conversion efficiency, emission of far infrared healthy physiotherapy light waves, safety, environmental protection and the like.
Further, the preset drying mode in the step (3) is as follows: the drying temperature is 80-150 ℃, and the drying time is 10-30 min.
And (5): selecting a light and thin knitted fabric or non-woven fabric with a loose organizational structure as the other side of the electric heating film package, namely a seventh structural layer 7, and pasting a waterproof breathable TPU (thermoplastic polyurethane) film or PTFE (polytetrafluoroethylene) film on the inner surface of the knitted fabric or non-woven fabric, wherein the pattern of the waterproof breathable TPU film or PTFE film is consistent with that of the hollowed-out special-shaped planar electric heating circuit in the step (3), and the waterproof breathable TPU film or PTFE film is used as a sixth structural layer 6.
And (6): and (3) coating silica gel (a fifth structural layer 5) with the width of 0.5-1 cm along the edge of the sixth structural layer 6, firmly sticking the second structural layer 2, the third structural layer 3 and the sixth structural layer 6 together through hot-pressing processing, and performing hot-pressing processing and forming through a surface-surface bonding process to prepare the low-pressure flexible durable waterproof moisture-permeable electrothermal film for clothes.
Further, the surface-to-surface bonding process in the step (6) is flat plate glue pressing bonding.
Finally, the prepared low-pressure soft waterproof moisture-permeable electric heating film for the clothes is subjected to electric heating effect test, bending resistance test, moisture permeability test and resistivity change water resistance test respectively, and the test results are as follows:
a. and (3) testing the electric heating effect: the maximum heating temperature is 70 ℃; the temperature variation coefficient of the heating surface is 8 percent (required to be less than 10 percent), and the temperature can be raised to the highest heating temperature within 30 seconds;
b. and (3) bending resistance test: after 10000 times of folding and twisting and bending experiments, the resistivity change is 13 percent (the requirement is less than 17 percent);
c. moisture permeability test: the moisture permeability is 2200g/m2.d, so that the normal wearing requirement of the clothes is met;
d. water wash resistance test: after 40 times of water washing, the resistivity change is less than 10 percent, and the standard requirement is met.
Therefore, the utility model provides a dress is with waterproof moisture permeable electric heat membrane adopts combined material graphite alkene/carbon nanotube conductive carbon printing ink to print the electric heat membrane that has fretwork dysmorphism face form circuit pattern through the screen printing method to only to containing the processing of waterproof encapsulation of doing at face form circuit pattern position, the fretwork position is for leading the sweat passageway, under the prerequisite that possesses waterproof function, can effectively improve the moisture permeability of electric heat membrane, has remain face form membrane that generates heat simultaneously and has had resistant the advantage of buckling and the homogeneity that generates heat.
Claims (8)
1. A low-pressure soft waterproof moisture permeable electrothermal film for clothes is characterized by comprising a first fabric layer, a second fabric layer, a first high-molecular functional film layer and a second high-molecular functional film layer; the first polymer functional film layer is pasted on the reverse side of the first fabric layer, the second polymer functional film layer is pasted on the reverse side of the second fabric layer, and the outer surface of the first polymer functional film layer is printed with a conductive carbon ink layer; a conductive carrier fluid layer is pasted between the conductive carbon ink layer and the second polymer functional film layer, and the conductive carrier fluid is printed along the edge line of the electric heating circuit on the outer surface of the conductive carbon ink layer; the outer surface edge line of second polymer function rete has the silica gel layer, second polymer function rete passes through the silica gel layer with the laminating of conductive carbon printing ink layer.
2. The low-pressure soft waterproof moisture-permeable electrothermal film for clothing of claim 1, wherein the first fabric layer is a woven fabric layer.
3. The low-pressure soft waterproof moisture-permeable electrothermal film for clothing of claim 1, wherein the second fabric layer is a knitted fabric or a non-woven fabric layer.
4. The low-pressure soft waterproof moisture-permeable electrothermal film for clothing of claim 1, wherein the first polymer functional film layer and the second polymer functional film layer are both TPU film layers or PTFE film layers.
5. The low-pressure flexible waterproof moisture-permeable electrothermal film for clothing of claim 1, wherein the conductive carbon ink layer is made of composite graphene/carbon nanotubes.
6. The low-pressure soft waterproof moisture-permeable electrothermal film for clothes of claim 1, wherein a hollowed-out irregular planar electrothermal circuit pattern is disposed on the conductive carbon ink layer, and a hollowed-out part in the hollowed-out irregular planar electrothermal circuit pattern is a sweat guide channel.
7. The low-pressure soft waterproof moisture-permeable electrothermal film for clothing of claim 6, wherein the hollowed-out irregular-shaped planar electrothermal circuit pattern of the conductive carbon ink layer is consistent with the shapes of the first polymer functional film layer and the second polymer functional film layer.
8. The low-pressure soft waterproof moisture-permeable electrothermal film for clothes of claim 1, wherein the first fabric layer, the second fabric layer, the first polymer functional film layer, the second polymer functional film layer, the conductive carbon ink layer, the silica gel layer and the conductive fluid carrying layer are formed by hot pressing through a surface-to-surface lamination process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022943635.9U CN214154870U (en) | 2020-12-07 | 2020-12-07 | Low-pressure soft waterproof moisture permeable electrothermal film for clothing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022943635.9U CN214154870U (en) | 2020-12-07 | 2020-12-07 | Low-pressure soft waterproof moisture permeable electrothermal film for clothing |
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| CN214154870U true CN214154870U (en) | 2021-09-07 |
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| CN202022943635.9U Active CN214154870U (en) | 2020-12-07 | 2020-12-07 | Low-pressure soft waterproof moisture permeable electrothermal film for clothing |
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